EARPHONE

• US 20110038503A1
• Filed: 09/09/2009
• Published: 02/17/2011
• Est. Priority Date: 08/12/2009
• Status: Abandoned Application

• Current Assignee: Cotron Corporation
• Original Assignee: Cotron Corporation
• Inventors: Yang, Bill
• Application Number:
  US12/556,042
• Publication Number:
  US 20110038503A1
• Time in Patent Office: Days
• US Class Current: 381/380
• CPC Class Codes: H04R 1/1016 Earpieces of the intra-aural type
• CPC Class Codes: H04R 1/22 for obtaining desired frequency characteristic only circuit for combining transducers having different responses H04R3/00; for hearing aids H04R25/407
• CPC Class Codes: H04R 1/26 Spatial arrangements of separate transducers responsive to two or more frequency ranges
• CPC Class Codes: H04R 11/02 Loudspeakers
• CPC Class Codes: H04R 9/06 Loudspeakers

Abstract

An earphone including a housing, a moving coil speaker, and a balance armature speaker is provided. The housing has an accommodating space and a single sound conducting channel connected to the accommodating space. The moving coil speaker and the balance armature speaker are disposed in the accommodating space of the housing, and sounds generated by the moving coil speaker and the balance armature speaker are output together through the single sound conducting channel. The earphone is characterized by soft bass from the moving coil speaker and a smooth frequency response curve from the balance armature speaker.

Claims

1. An earphone, comprising:

a first housing, provided with a first accommodating space and a single sound conducting channel;

a moving coil speaker, disposed in the first accommodating space; and

a balance armature speaker, disposed in the first accommodating space, wherein sounds generated by the moving coil speaker and the balance armature speaker are output together through the single sound conducting channel.

2. The earphone according to claim 1, wherein the moving coil speaker comprises:

a second housing, provided with a second accommodating space;

a speaker vibration system, disposed in the second accommodating space; and

a magnetic loop, disposed in the second accommodating space.

3. The earphone according to claim 2, wherein the speaker vibration system comprises a vibrating membrane and a coil disposed on the vibrating membrane.

4. The earphone according to claim 2, wherein the magnetic loop comprises a magnet and a polepiece.

5. The earphone according to claim 2, wherein the moving coil speaker further comprises a dust filter disposed at an opening of the second housing.

6. The earphone according to claim 2, wherein the moving coil speaker further comprises a circuit board disposed outside the second housing.

7. The earphone according to claim 1, wherein the balance armature speaker comprises:

a second housing, provided with a second accommodating space;

a sounding assembly, disposed in the second accommodating space;

a driving assembly, disposed in the second accommodating space; and

a driving rod, with two ends respectively connected to the sounding assembly and the driving assembly.

8. The earphone according to claim 7, wherein the sounding assembly comprises:

a frame, fixed to the second housing; and

a vibrating membrane, disposed on the frame, wherein one end of the driving rod is connected to the vibrating membrane.

9. The earphone according to claim 7, wherein the driving assembly comprises:

an armature, disposed in the second housing;

a coil, disposed in the armature; and

a set of magnets, disposed at two sides of a free end of the armature, wherein one end of the driving rod is connected to the armature.

10. The earphone according to claim 1, further comprising an ear cushion, disposed outside the single sound conducting channel of the first housing.